Door barring device



Jan. 15, 1935. RElNER DOOR EARRING DEVICE Filed Sept. 24, 1952 JJu Enilu:

fl Z 1 01912 2 Patented Jan. 15,1935

UNITED STATES DOOR EARRING DEVICE Theodor Reiner, Munich, Germany Application September 24, 1932, Serial No. 634,625 In Germany May 39, 1931 1 Claim.

This invention relates to a door barring de- Vice allowing of opening a door so much that a gap is formed. In this device a sliding bolt that can be actuated manually, as well as by a key, but requires in this latter case two turnings of the key in order to assume its final or locking position, co-operates with two bolt staples, of which one is afiixed to the door frame or to the normally closed door wing if there are two wings, and of which the other is connected with a movable member also located in said frame or other wing and permitting the movable door Wing to be opened only so much that a gap is formed.

My invention is illustrated diagrammatically and by way of example on the accompanying drawing on which Figure 1 is a perspective view of a door barring device designed according to this invention, the covering casing of the device being partly broken away and the door being shown in closed state. Figure 2 is a section in the line A-B of Fig. 3, the door being so much opened that a gap exists between its wing and its frame. Figure 3 is a separate view of the parts shown in the righthand upper portion of Fig. 1,

but without the door.

Before entering into the details of the device, I wish it to be understood that the lock mechanism proper with its tumblers and other members (except the sliding bolt) forming parts of said mechanism does not form a part of the present invention, and I have, therefore, abstained from showing and describing the lock mechanism in detail.

On the drawing, 2 (Fig. 1) denotes a lock with a keyhole 2 and a sliding bolt 3. 4 is a helical tensile spring by which the bolt 3 can be drawn into its locking position, and 5 are the usual tumblers for securing said sliding bolt in its various positions. 6 is the door frame, and 7 and 8 are two so-called bolt staples, of which one ('7) is firmly attached to the door frame 6, whereas the other (8) is connected with a chain 9, the other portion or end of which extends into a small casing 10 screwed to the door frame 6. The free end ofv the chain 9'is connected with a helical tensile spring 11 located in said casing 10. The operating end of the sliding bolt 3 is stepped in the manner shown in Figs. 1 and 3, and this end engages, when the bolt is in its looking or barring position, slots 12 and 13 provided in said bolt staples '7 and 8, 14 (Figs. 1 and 3) denotes the lug-like stepped end proper of the sliding bolt 3, and 15 denotes the lower bolt corner located adjacent to said lug 14. The

slot 12 of the bolt staple 8 is horizontal and the slot 13 of the bolt staple 7 is vertical. The bolt end proper or lug 14 co-operates with said horizontal slot 12 and the bolt corner 15 co-operates with said vertical slot 13. 6

The manner of operation of this device is as follows:

When the door has been completely closed by two turns of the lock key (not shown), the sliding bolt 3 is in engagement with both staples, as 10 in Fig. 1, and is secured in this position by the tumblers 5. If the door is to be opened only so littl as to present a gap the key is turned rearwardly one time, in consequence of which the sliding bolt 3 is so much withdrawn 15 that the bolt corner 15 leaves the bolt staple slot 13, whereas the sliding bolt end proper or lug 14 still remains in the bolt staple slot 12 (Fig. 3). When now the door is being opened, the lug 14 takes the bolt staple 8 along with it 20 and draws thereby the chain forwardly (Fig. 2) so as to expand the spring 11. The lowermost transverse pin of the chain is longer than the other link pins which can freely pass through the slot of the casing 10 through which the chain 25 passes; when said longer pin arrives at said slot it is retained, that is to say, it acts as an abutment member which prevents further movement of the bolt staple 8 and of the chain 9. The door presents now a gap. When the key 30 or the lock or the handle of the door is relieved, the door wing will be automatically closed by the spring 11, as will be clear without a separate explanation. I

If, however, the door is to be opened completely, the key is turned twice so that also the lug 14 leaves the slot 12 of the bolt staple 8. This position of the end portions of the sliding bolt 3 is indicated by dotted lines in Fig. 3.

My improved door barring device may be used in connection with one-wing doors, as well as with two-wing doors. In the examples shown in the drawing the door has only one wing and the bolt staple 7 (Fig. 2) is attached to the door 45 frame. In the other case (two-wing door), the member 7 is attached to the other wing.

I claim:

A door barring device, comprising, in combination, a horizontal sliding bolt and a hori- 50 zontal lug projecting from the middle portion of the locking edge of said bolt; a stationary barring member projecting horizontally from the normally stationary door part and having in its side portion a vertical slot so located relatively to said lock bolt as to be adapted to receive said lug when the door is to be kept completely barred; another barring member also projecting horizontally from the normally stationary door part and being located in close proximity to the first-mentioned barring member and being horizontally movable and having a horizontal slot located opposite the end portion of the lock bolt and being adapted to receive said lock bolt portion when the door is to be opened only partially; a longitudinally movable drawable member connected at one end with said movable barring member and at the other end with the normally stationary door part; a guide for said movable drawable member, and. means for retracting this member with its appertaining barring member.

THEODOR REINER 

